# N3 文字語彙問題集 vs Sacred Knowledge Vault

The clearest difference is update cadence: Sacred Knowledge Vault at every 8 days against N3 文字語彙問題集's every 22 months. Sacred Knowledge Vault also leads on iOS requirement (15 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

N3 文字語彙問題集 ships an update every 22 months, Sacred Knowledge Vault every 8 days. The most recent releases landed on September 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | N3 文字語彙問題集 | Sacred Knowledge Vault |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 8 days** |
| Size | 10 MB | 25 MB |
| Requires iOS | 26.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yamase & Touwa Japanese Insititute](https://appshunter.io/developer/442115304) | [平 何](https://appshunter.io/developer/1630512266) |

## What reviewers say

### N3 文字語彙問題集

[App page](https://appshunter.io/ios/app/n3/id1114363348)

**Features:** Vision Pro support

**In-app purchases:** none


### Sacred Knowledge Vault

[App page](https://appshunter.io/ios/app/sacred-knowledge-vault/id6792727759)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is N3 文字語彙問題集 free?

N3 文字語彙問題集 is free to download, with no in-app purchases.

### Is Sacred Knowledge Vault free?

Sacred Knowledge Vault is free to download, with no in-app purchases.

### Do N3 文字語彙問題集 or Sacred Knowledge Vault have ads?

Neither N3 文字語彙問題集 nor Sacred Knowledge Vault shows ads.

### Which is updated more often, N3 文字語彙問題集 or Sacred Knowledge Vault?

N3 文字語彙問題集 ships an update every 22 months, and Sacred Knowledge Vault every 8 days. Most recently, N3 文字語彙問題集 was updated on September 26, 2026 and Sacred Knowledge Vault on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*